Neckband-stretcher.



- PATBNTED APR.25,1905.

y W. M. BARNES. 4

NBGKBAND STRETGHER.

APPLICATION FILED JULY 211.1903.v

2 sums-SHEET 1.

' Arrow/HJ No. 788,183. l PATENTED APR. 25, 1905. W. M. BARNES.

NEGKBAND STRETGHBR. APPLIUATION FILED JULY 21, 1903.

2 SHEETS-SHEET 2.

u//rr/Essfa; i A lum/ron A 7117. M Mm @y ,s rra/merg NITED STATESPatented April 25, 1905.

PATENT OFFICE.

NECKBANDfSTRETCHER.

SPECIFICATION forming part of Letters Patent No. 788,183, dated April25, 1905.

Application filed July 21,1903. Serial No. 166,451.

T0 all r11/wm, it nur/y concern:

Be it known that I, WILLIAM M. BARNES, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement inNeckband-Stretchers` of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, whichform a part of this specification.

Speaking generally, my invention relates to that class of'neckband-stretchers which is illustrated, described, and claimed in anapplication filed by me December 27, 1902, Serial No. 136,77 6. Theneckband-stretcher consists of a fixed central portion formed of twosurfaces curved eccentrically to each other. From one end of' each ofthese curved portions a wing projects, each wing being movable to andfrom its contiguous central portion in a path at a diverging angle fromthe other wing. In my previous application I described, illustrated, andclaimed, among other things, a mechanism for moving the wings to andfrom the central portion and holding them'in the different positions. Ihave discovered a simple and more certain mechanism for accomplishingthis purpose, and this forms the subject-matter of' the presentinvention.

I Will first describe the specific embodiment of this invention asillustrated in the accompanying drawings and then point out theinvention in the claims.

In the drawings, Figure l is a plan View of the device attached to itsbase or operating board or table. Fig. 2 is an enlarged plan view. Fig.3 is a section on line 3 3, Fig. 2. Fig. 4 is an end elevation. Fig. 5is aview similar to Fig. 2 of a modified form. Fig. 6 is a section online 6 6, Fig. 5. Fig. 7 is an end elevation of' structure of Fig. 5.

Speaking of Figs. l to 4, A is the base of the neckband-stretcher; B B',the fixed curved flanges extending from said base, the curvature of' theflange B being eccentric to that of the iiange B. Projecting from theend of' the fiange B is the wing C, and projecting from the end ofl theflange B is the wing C'. These wings G (.l project beyond the respectivecen- Ateeth only of considerable width.

tral flanges B B, and each of the Wings is curved concentric with thecurvature of' its central portion. Secured to the base A is a stud orblock d, which rests in a slot d in a lateral flange D, projecting fromthe wing C, which slot and block are curved to be concentric With thecurvature of the flange B. rl`he outer surface of' this iangc D has thegear d2, meshing with the teeth e of the segmental gear E, pivoted tothe base A. In like manner a stud or block f, secured to the base, restsin a slot f in a lateral flange F, projecting from the wing C, whichslot and block are curved concentric with the curvature of the flangeB'. The outer surface of the flange F also has the gear f2, meshing withthe teeth g of the segmental gear G, pivoted to the base A. The teethof' the two gears also intermesh.

As may be seen, the movements of the wings with reference to each otherare in diverging paths. H is a pin secured to the face of gear Gr andresting in a slot lc, formed between the spiral faces 7c 762 of the camK, pivoted to base A and provided with the thumb-piece L for turning thecam. When the pin H- rests at the farthest outward point of' thecam-slot 7s, the wings C and C are at their inner positions. By turningthe cam K the outer wall of the slot in the cam draws the pin H inward,turning the gears E and G and which, moving upon the gears Z2 and f2,move the wings outwardly beyond the central flanges B B. The cam-facesalso lock to hold the pin from movement unless the cam be rotated.

In Figs. 5, 6, and 7 I have shown a modified 'form of' embodiment of myinvention. In this form the gears f' 2X and f2X have two with this gear032x is a toothed projection m of a crank-arm M, pivoted at m. Meshingwith this gear fzx is a toothed projection a of' a crank-arm N, pivotedat a. A pin O is connected to the arm N and passes through an elongatedslot-0 in the arm M. The pin O also passes through the slot 7c of cam K.

Havingnow fully described my invention, what I claim, and desire toprotect by Letters Patent, is4

1. In combination, a neckband-stretcher, comprising a central portionand wings pro- Meshing jecting from said central portion and movable toand from said central portion, said Wings each having a gear, a gear foreach of said winggears, interconnection between said gears whereby theymove in unison, a cam, and a connection between said cam and said gears,whereby in the movement of said cam, said gears are operated to move theWings.

2. In combination, a neclband-stretcher, having a central portion and awing projecting from said central portion and movable to and from saidcentral portion, said Wing having a gear, a gear meshing with saidWinggear, a pin secured to said gear, and a cam having a spiral yslot inwhich said pin rests.

3. In combination, a neclband-stretcher,

WILLIAM M. BARNES.

Witnesses:

M. F. ELLIS, M. M. HAMILTON.

